esp-idf/components/app_trace/include/esp_app_trace_util.h

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2021-05-02 22:15:17 -04:00
/*
* SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ESP_APP_TRACE_UTIL_H_
#define ESP_APP_TRACE_UTIL_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "freertos/FreeRTOS.h"
#include "esp_err.h"
#include "esp_timer.h"
/** Infinite waiting timeout */
#define ESP_APPTRACE_TMO_INFINITE ((uint32_t)-1)
/** Structure which holds data necessary for measuring time intervals.
*
* After initialization via esp_apptrace_tmo_init() user needs to call esp_apptrace_tmo_check()
* periodically to check timeout for expiration.
*/
typedef struct {
int64_t start; ///< time interval start (in us)
int64_t tmo; ///< timeout value (in us)
int64_t elapsed; ///< elapsed time (in us)
} esp_apptrace_tmo_t;
/**
* @brief Initializes timeout structure.
*
* @param tmo Pointer to timeout structure to be initialized.
* @param user_tmo Timeout value (in us). Use ESP_APPTRACE_TMO_INFINITE to wait indefinetly.
*/
static inline void esp_apptrace_tmo_init(esp_apptrace_tmo_t *tmo, uint32_t user_tmo)
{
tmo->start = esp_timer_get_time();
tmo->tmo = user_tmo == ESP_APPTRACE_TMO_INFINITE ? (int64_t)-1 : (int64_t)user_tmo;
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tmo->elapsed = 0;
}
/**
* @brief Checks timeout for expiration.
*
* @param tmo Pointer to timeout structure.
*
* @return number of remaining us till tmo.
*/
esp_err_t esp_apptrace_tmo_check(esp_apptrace_tmo_t *tmo);
static inline uint32_t esp_apptrace_tmo_remaining_us(esp_apptrace_tmo_t *tmo)
{
return tmo->tmo != (int64_t)-1 ? (tmo->elapsed - tmo->tmo) : ESP_APPTRACE_TMO_INFINITE;
}
/** Tracing module synchronization lock */
typedef struct {
portMUX_TYPE mux;
unsigned int_state;
} esp_apptrace_lock_t;
/**
* @brief Initializes lock structure.
*
* @param lock Pointer to lock structure to be initialized.
*/
static inline void esp_apptrace_lock_init(esp_apptrace_lock_t *lock)
{
vPortCPUInitializeMutex(&lock->mux);
lock->int_state = 0;
}
/**
* @brief Tries to acquire lock in specified time period.
*
* @param lock Pointer to lock structure.
* @param tmo Pointer to timeout struct.
*
* @return ESP_OK on success, otherwise \see esp_err_t
*/
esp_err_t esp_apptrace_lock_take(esp_apptrace_lock_t *lock, esp_apptrace_tmo_t *tmo);
/**
* @brief Releases lock.
*
* @param lock Pointer to lock structure.
*
* @return ESP_OK on success, otherwise \see esp_err_t
*/
esp_err_t esp_apptrace_lock_give(esp_apptrace_lock_t *lock);
/** Ring buffer control structure.
*
* @note For purposes of application tracing module if there is no enough space for user data and write pointer can be wrapped
* current ring buffer size can be temporarily shrinked in order to provide buffer with requested size.
*/
typedef struct {
uint8_t *data; ///< pointer to data storage
volatile uint32_t size; ///< size of data storage
volatile uint32_t cur_size; ///< current size of data storage
volatile uint32_t rd; ///< read pointer
volatile uint32_t wr; ///< write pointer
} esp_apptrace_rb_t;
/**
* @brief Initializes ring buffer control structure.
*
* @param rb Pointer to ring buffer structure to be initialized.
* @param data Pointer to buffer to be used as ring buffer's data storage.
* @param size Size of buffer to be used as ring buffer's data storage.
*/
static inline void esp_apptrace_rb_init(esp_apptrace_rb_t *rb, uint8_t *data, uint32_t size)
{
rb->data = data;
rb->size = rb->cur_size = size;
rb->rd = 0;
rb->wr = 0;
}
/**
* @brief Allocates memory chunk in ring buffer.
*
* @param rb Pointer to ring buffer structure.
* @param size Size of the memory to allocate.
*
* @return Pointer to the allocated memory or NULL in case of failure.
*/
uint8_t *esp_apptrace_rb_produce(esp_apptrace_rb_t *rb, uint32_t size);
/**
* @brief Consumes memory chunk in ring buffer.
*
* @param rb Pointer to ring buffer structure.
* @param size Size of the memory to consume.
*
* @return Pointer to consumed memory chunk or NULL in case of failure.
*/
uint8_t *esp_apptrace_rb_consume(esp_apptrace_rb_t *rb, uint32_t size);
/**
* @brief Gets size of memory which can consumed with single call to esp_apptrace_rb_consume().
*
* @param rb Pointer to ring buffer structure.
*
* @return Size of memory which can consumed.
*
* @note Due to read pointer wrapping returned size can be less then the total size of available data.
*/
uint32_t esp_apptrace_rb_read_size_get(esp_apptrace_rb_t *rb);
/**
* @brief Gets size of memory which can produced with single call to esp_apptrace_rb_produce().
*
* @param rb Pointer to ring buffer structure.
*
* @return Size of memory which can produced.
*
* @note Due to write pointer wrapping returned size can be less then the total size of available data.
*/
uint32_t esp_apptrace_rb_write_size_get(esp_apptrace_rb_t *rb);
int esp_apptrace_log_lock(void);
void esp_apptrace_log_unlock(void);
#define ESP_APPTRACE_LOG( format, ... ) \
do { \
esp_apptrace_log_lock(); \
esp_rom_printf(format, ##__VA_ARGS__); \
esp_apptrace_log_unlock(); \
} while(0)
#define ESP_APPTRACE_LOG_LEV( _L_, level, format, ... ) \
do { \
if (LOG_LOCAL_LEVEL >= level) { \
ESP_APPTRACE_LOG(LOG_FORMAT(_L_, format), esp_log_early_timestamp(), TAG, ##__VA_ARGS__); \
} \
} while(0)
#define ESP_APPTRACE_LOGE( format, ... ) ESP_APPTRACE_LOG_LEV(E, ESP_LOG_ERROR, format, ##__VA_ARGS__)
#define ESP_APPTRACE_LOGW( format, ... ) ESP_APPTRACE_LOG_LEV(W, ESP_LOG_WARN, format, ##__VA_ARGS__)
#define ESP_APPTRACE_LOGI( format, ... ) ESP_APPTRACE_LOG_LEV(I, ESP_LOG_INFO, format, ##__VA_ARGS__)
#define ESP_APPTRACE_LOGD( format, ... ) ESP_APPTRACE_LOG_LEV(D, ESP_LOG_DEBUG, format, ##__VA_ARGS__)
#define ESP_APPTRACE_LOGV( format, ... ) ESP_APPTRACE_LOG_LEV(V, ESP_LOG_VERBOSE, format, ##__VA_ARGS__)
#define ESP_APPTRACE_LOGO( format, ... ) ESP_APPTRACE_LOG_LEV(E, ESP_LOG_NONE, format, ##__VA_ARGS__)
#ifdef __cplusplus
}
#endif
#endif //ESP_APP_TRACE_UTIL_H_